{
	"realname": "  名字  ",
	"province": "省份  "
}

class TrimStringsMiddleware implements MiddlewareInterface
{

    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        $data = $request->getParsedBody();
        $data = array_map('trim', $data);

        $request = $request->withParsedBody($data);

        return $handler->handle($request);
    }
}

    /**
     * 创建或修改收货地址
     *
     * @param UserAddressRequest $request
     * @return array|bool[]
     *
     * @PostMapping("/user/address")
     */
    public function post(UserAddressRequest $request)
    {
        $form = $request->validated();
        return $form;
    }